کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1522855 | 995316 | 2013 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effect of nanocarbides and interphase hardness deviation on stretch-flangeability in 998Â MPa hot-rolled steels
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
مواد الکترونیکی، نوری و مغناطیسی
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چکیده انگلیسی
By performing various laboratory hot-rolling simulation tests, effective rolling conditions for steel with a composition (mass %) of 0.06C-2.0Mn-0.5Si-0.5Cr-0.2(Ti + Nb + V) was studied. Very remarkable mechanical properties were obtained when the coiling simulation temperature was 650 °C: a hole-expanding ratio of 65%, total elongation of 19%, and ultimate tensile strength of 998 MPa were achieved in the hot-rolled state. These results were associated with the Ti-Nb-V multi-microalloyed carbides (10-50 nm in size) precipitated in the ferrite matrix, and with the minimized deviation in interphase hardness.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Chemistry and Physics - Volume 140, Issue 1, 15 June 2013, Pages 307-315
Journal: Materials Chemistry and Physics - Volume 140, Issue 1, 15 June 2013, Pages 307-315
نویسندگان
Eun Joon Chun, Hyeonghyeop Do, Seongju Kim, Dae-Geun Nam, Yong-Ho Park, Namhyun Kang,